Re: [PATCH 1/2] openvswitch: support asymmetric conntrack

From: David Miller
Date: Wed Dec 04 2019 - 19:32:35 EST


From: Aaron Conole <aconole@xxxxxxxxxx>
Date: Tue, 3 Dec 2019 16:34:13 -0500

> The openvswitch module shares a common conntrack and NAT infrastructure
> exposed via netfilter. It's possible that a packet needs both SNAT and
> DNAT manipulation, due to e.g. tuple collision. Netfilter can support
> this because it runs through the NAT table twice - once on ingress and
> again after egress. The openvswitch module doesn't have such capability.
>
> Like netfilter hook infrastructure, we should run through NAT twice to
> keep the symmetry.
>
> Fixes: 05752523e565 ("openvswitch: Interface with NAT.")
> Signed-off-by: Aaron Conole <aconole@xxxxxxxxxx>
> ---
> NOTE: this is a repost to see if the email client issues go away.

Applied and queued up for -stable.